1 package org.apache.maven.lifecycle.internal;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
23 import org.apache.maven.project.MavenProject;
24
25 import java.util.HashMap;
26 import java.util.List;
27 import java.util.Map;
28
29 /**
30 * <p>
31 * Provides the positional index of the project
32 * </p>
33 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
34 *
35 * @since 3.0
36 * @author Benjamin Bentmann
37 * @author Kristian Rosenvold (extracted class only)
38 */
39 // TODO Kristian wonders if this class really is necessary and if it overlaps other concepts.
40 public final class ProjectIndex
41 {
42
43 private final Map<String, MavenProject> projects;
44
45 private final Map<String, Integer> indices;
46
47 public ProjectIndex( List<MavenProject> projects )
48 {
49 this.projects = new HashMap<>( projects.size() * 2 );
50 this.indices = new HashMap<>( projects.size() * 2 );
51
52 for ( int i = 0; i < projects.size(); i++ )
53 {
54 MavenProject project = projects.get( i );
55 String key = BuilderCommon.getKey( project );
56
57 this.getProjects().put( key, project );
58 this.getIndices().put( key, i );
59 }
60 }
61
62 public Map<String, MavenProject> getProjects()
63 {
64 return projects;
65 }
66
67 public Map<String, Integer> getIndices()
68 {
69 return indices;
70 }
71 }